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2025-12-11 - 13:42
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot0.osadl.org (updated Thu Dec 11, 2025 01:00:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
915199260231,13cyclictest0-21swapper/2323:15:2016
915199260231,13cyclictest0-21swapper/2323:15:2016
915199259239,4cyclictest0-21swapper/2300:00:1816
915199259239,4cyclictest0-21swapper/2300:00:1816
915199259239,4cyclictest0-21swapper/2300:00:1816
915399252230,11cyclictest0-21swapper/2519:55:1918
915399252230,11cyclictest0-21swapper/2519:55:1918
910499251222,11cyclictest0-21swapper/1019:35:172
910499251222,11cyclictest0-21swapper/1019:35:172
910499228217,8cyclictest9666-21inotify_reader23:20:212
910499228217,8cyclictest9666-21inotify_reader23:20:212
915399221202,11cyclictest0-21swapper/2500:25:1918
915399221202,11cyclictest0-21swapper/2500:25:1918
915199220197,14cyclictest38901-21inotify_reader19:45:2216
915199220197,14cyclictest38901-21inotify_reader19:45:2216
915199220197,14cyclictest38901-21inotify_reader19:45:2216
909899215156,55cyclictest10902-21TaskSchedulerSi21:10:1838
909899215156,55cyclictest10902-21TaskSchedulerSi21:10:1838
9159992131,195cyclictest0-21swapper/3022:55:2024
9159992131,195cyclictest0-21swapper/3022:55:2024
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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